I think it probably varies a bit for each of us, but in general, yeah, we do age a lot slower than humans do. Once we hit the age that... we're meant to be, I guess? We'll just stay around that age indefinitely. So it's totally possible for a god to look older than me, but actually have been alive for fewer years than I have. I don't think I've aged for... a bunch of centuries now.

[ He doesn't keep track, so "a bunch of centuries" is as good as his estimate can get... ]